21.91=x+8.16

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Solution for 21.91=x+8.16 equation: 



21.91=x+8.16

We move all terms to the left:

21.91-(x+8.16)=0

We get rid of parentheses

-x-8.16+21.91=0

We add all the numbers together, and all the variables

-1x+13.75=0

We move all terms containing x to the left, all other terms to the right

-x=-13.75

x=-13.75/-1

x=13+0.75/1

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